一个H的组合词B. Neumann
Un lemme combinatoire de H. B. Neumann
摘要:
我们给出了H的一个特别简单和简短的证明。B.诺依曼的结果,粗略地说,像这样。对于全序半群的任何良序子集A,A的任何有限个元素的乘积集本身是良序的。此外,对于每一个t,只有有限个这样的产品等于t。
英文摘要:
We give a notably simpler and shorter proof of H. B. Neumann's result which is stated, cursorly, like this. For any well-ordered subset, A, of a totally ordered semigroup, the set of products of any finite number of elements of A is itself well-ordered. Moreover, for each t, there are only a finite number of such products equal to t.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。